Commit 692f983b authored by Wolfram Sang's avatar Wolfram Sang Committed by Alexandre Belloni
Browse files

rtc: rzn1: drop superfluous wday calculation 



The week register simply counts from 0 to 6 where the numbers do not
even represent a specific weekday. So we can adopt 'tm_wday' numbering
of the RTC core without converting it.

Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20241122101448.4374-2-wsa+renesas@sang-engineering.com


Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent 1ec371ba

drivers/rtc/rtc-rzn1.c

+0 −15
Original line number Diff line number Diff line
@@ -75,19 +75,6 @@ static void rzn1_rtc_get_time_snapshot(struct rzn1_rtc *rtc, struct rtc_time *tm 
	tm->tm_year = readl(rtc->base + RZN1_RTC_YEARC);

}



static unsigned int rzn1_rtc_tm_to_wday(struct rtc_time *tm)

{

	time64_t time;

	unsigned int days;

	u32 secs;



	time = rtc_tm_to_time64(tm);

	days = div_s64_rem(time, 86400, &secs);



	/* day of the week, 1970-01-01 was a Thursday */

	return (days + 4) % 7;

}



static int rzn1_rtc_read_time(struct device *dev, struct rtc_time *tm)

{

	struct rzn1_rtc *rtc = dev_get_drvdata(dev);
@@ -109,7 +96,6 @@ static int rzn1_rtc_read_time(struct device *dev, struct rtc_time *tm) 
	tm->tm_sec = bcd2bin(tm->tm_sec);

	tm->tm_min = bcd2bin(tm->tm_min);

	tm->tm_hour = bcd2bin(tm->tm_hour);

	tm->tm_wday = bcd2bin(tm->tm_wday);

	tm->tm_mday = bcd2bin(tm->tm_mday);

	tm->tm_mon = bcd2bin(tm->tm_mon) - 1;

	tm->tm_year = bcd2bin(tm->tm_year) + 100;
@@ -126,7 +112,6 @@ static int rzn1_rtc_set_time(struct device *dev, struct rtc_time *tm) 
	tm->tm_sec = bin2bcd(tm->tm_sec);

	tm->tm_min = bin2bcd(tm->tm_min);

	tm->tm_hour = bin2bcd(tm->tm_hour);

	tm->tm_wday = bin2bcd(rzn1_rtc_tm_to_wday(tm));

	tm->tm_mday = bin2bcd(tm->tm_mday);

	tm->tm_mon = bin2bcd(tm->tm_mon + 1);

	tm->tm_year = bin2bcd(tm->tm_year - 100);